| 摘要 |
A method for checking dimensions of parts foresees the use of a gauging head (2) with at least a movable feeler (14) that contacts the surface (6) of the part (4) to be checked and a transducer (20) that provides a signal responsive to the position of the feeler (14). The checking, that is performed dynamically in correspondence with one or more checking locations, involves mutual movements between the head (2) and the part (4) and a sliding between the movable feeler (14) and the surface (6). In order to eliminate malfunctions introduced by frictional forces arising during the sliding, the method includes performing two scanning motions in correspondence with each checking location, according to two opposite directions, detecting values of the signal of the transducer (20) for each scanning motion, and averaging the detected values to obtain a value representative of the dimension to be checked, or of its deviation from a nominal value. |
